NextDNS is awesome if you want the simple solution, and don’t have any hardware to install services on. Thee free version is somehwta limited to queries(300k per month), but personally didn’t hit those when I was using the free tier.
NextDNS has a lot of nice customization and can easily had custom block lists. The pro version is 2euros a month I believe. I personally stick with NextDNS due to never having to worry about updating the service and it always just works. I also have it hooked to my Tailnet, that way all my devices use it by default.
But ofc, Pihole, Adguard and the rest are also awesome. Best to just pick one that looks good for you. The end goal here is to just have something running in the background rather than nothing.
I ended up doing this and it worked swimmingly! ✨
Big shout out to Gluetun VPN for making it so easy!
Neber tried it with Android Auto before, but I doubt it would, it’s a mesh vpn - not a typical vpn(proxy). So Tailscale is mostly for connecting your own devices together, however it’s possible that configure it to use Mullvad for exit nodes, if needed.